Where to get it: your local supermarket chain
Preparation: You can eat Greek yogurt on its own, with a handful of nuts or fruit, or use it to make dessert like I did. To make strawberry parfait, mix the yogurt with a few drops of vanilla extract and a small pinch of stevia. Beat it well until it mixes thoroughly. Top with strawberries.
Variations:You can use Greek yogurt to substitute for sour cream in your regular recipes, or you can use it to dip veggies and fruit. I sometimes throw it in a blender with some fruit and spices and make a smooth dessert. Peaches, bananas, pineapple, and berries, all work very very well!
Cons: It can be more expensive than making your own at home. To do that, just place regular plain yogurt in a cheese cloth and let it strain for a few hours.